var idx = Math.floor(Math.random() * 11);

	var idx2 = 0;
		idx2 = Math.floor(Math.random() * 11);
	var tempidx = idx2;

	if(idx2){
		if(idx2 == tempidx){
			idx2 = Math.floor(Math.random() * 11);
		}
	}else{
		idx2 = Math.floor(Math.random() * 11);
	}

	var arr = [
		{
			"fileName":"index.js",
		   "describe":"这是一片很寂寞的天下着有些伤心的雨..."
		},
		"我是一个字符串",
		1314520 + 5201314,
		true,
		Boolean("yes I do"),
		null,
		undefined,
		NaN,
		["生","旦","净","末","丑"],
		Math.PI,
		function checkAge(age){

			var title = ["孩提","黄口","垂髫","束发","总角","弱冠","而立","不惑","知天命","花甲","古稀","耄耋","期颐","华诞"]; 
			
			if(typeof age == "number"){
				
				if(age >= 0 && age < 3){
					return title[0];
				}
				else if(age >= 3 && age < 6){
					return title[1];
				}
				else if(age >= 6 && age < 8){
					return title[2];
				}
				else if(age >= 8 && age < 16){
					return title[3];
				}
				else if(age >= 16 && age < 20){
					return title[4];
				}
				else if(age >= 20 && age < 30){
					return title[5];
				}
				else if(age >= 30 && age < 40){
					return title[6];
				}
				else if(age >= 40 && age < 50){
					return title[7];
				}
				else if(age >= 50 && age < 60){
					return title[8];
				}
				else if(age >= 60 && age < 70){
					return title[9];
				}
				else if(age >= 70 && age < 80){
					return title[10];
				}
				else if(age >= 80 && age < 90){
					return title[11];
				}
				else if(age >= 90 && age < 100){
					return title[12];
				}
				else if(age >= 100){
					return title[13];
				}
			}else{
				return "参数age必须是number类型！";
			}

		}
	];

module.exports = arr[idx2];
